Description The KPS28T series is DC-input single channel which contains a light emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin SSOP package. The input-output isolation voltage is rated at 375Vrms. Schematic 1 4 2 3 1. Anode 2. Cathode 3. Emitter 4. Collector Features 1. Pb free and RoHS compliant 2. High isolation voltage (Viso=375Vrms) 3. Small and thin package (4pin SSOP, pin pitch 1.27mm) 4. Low input current type (I F =1.mA) 5. Current transfer ratio (CTR : ~6% at I F =1.mA, Vce=5V). 6. High collector to emitter voltage (V CEO =8V). 7. High-speed switching tr =3μs (typ.), tf =5μs (typ.). 8. MSL class 1 9. Agency Approvals: UL Approved (No. E169586): UL1577 c-ul Approved (No. E169586) VDE Approved (No. 4469): DIN EN6747-5-5 FIMKO Approved: EN665, EN695 SEMKO Approved: EN665, EN695 CQC Approved: GB8898-211, GB4943.1-211 Applications Programmable logic controllers Measuring instruments Power supply Hybrid IC Document No. 69P52.4-1 -
Outside Dimension Unit : mm TOLERANCE : ±.2mm Device Marking Notes: 281 YWW Y: Year code / WW: Week code Document No. 69P52.4-2 -
Absolute Maximum Ratings (Ta=25 ) Input Output Parameter Symbol Rating Unit Forward current I F 5 ma Peak forward current(*1) I FP 1 A Reverse voltage V R 6 V Power dissipation P D 6 mw Power dissipation derating P D /.6 mw/ Collector-Emitter voltage V CEO 8 V Emitter-Collector voltage V ECO 6 V Collector current I C 5 ma Collector power dissipation P C 16 mw Collector power dissipation derating P C / 1.2 mw/ Isolation voltage 1 minute(*2) Viso 375 Vrms Operating temperature Topr -55 to +115 Storage temperature Tstg -55 to +125 *1 PW=μs,Duty Cycle=1%. *2 AC voltage for 1minute at T =25,RH=6% between input and output. Electro-optical Characteristics (Ta=25 ) Parameter Symbol Conditions Min. Typ. Max. Unit Forward voltage V F I F =5mA 1.1 1.4 V Input Reverse current I R V R =5V 5 μa Terminal capacitance Ct V=, f=1mh Z 6 pf Output Collector dark current I CEO V CE =5V,I F =ma na Transfer characteristics Current transfer ratio CTR I F =1mA, V CE =5V 6 % Collector-Emitter saturation voltage V CE (sat) I F =ma, Ic=2mA.1.2 V Isolation resistance Riso DC5V 5x 11 Ω Floating capacitance Cf V=, f=1mh Z.4 - pf Response time (Rise) (*3) tr Vce=5V,Ic=2mA,R L =Ω 4 18 μs Response time (Fall) (*3) tf 3 18 μs *3 Test Circuit for Switching Time Document No. 69P52.4-3 -
125.5Ta=25 cosmo Fig.1 Current Transfer Ratio vs. Forward Current Classification table of current transfer ratio is shown below. CTR Rank. CTR ( % ) KPS28TA TO 6 KPS28TB 2 TO 5 KPS28TC 16 TO 4 KPS28TD 12 TO 3 KPS28TE TO 2 Current Transfer Ratio 435325215CTR ( % )5.1V =5V CE 2Forward Current I F (ma) Fig.2 Collector Power Dissipation vs. Ambient Temperature Fig.3 Collector Dark Current vs. Ambient Temperature Collector Power Dissipation PC ( mw ) 25 2 15 5-55 25 5 75 115 125 Collector Dark Current ICEO ( A ) -5-6 -7-8 -9 - -11 V CE=5V -55 25 5 75 115 Ambient Temperature Ta ( ) Ambient Temperature Ta ( ) Fig.4 Forward Current vs. Ambient Temperature 6 Fig.5 Forward Current vs. Forward Voltage Forward Current IF ( ma ) 5 4 3 2-55 25 5 75 115 125 Forward Current IF ( ma ) 5 C Ta=75 C Ta=75 C 1.1.5 1. 25 C C -25 C 1.5 Ambient Temperature Ta ( ) Forward Voltage V F (V) Document No. 69P52.4-4 -
Fig.6 Collector Current vs. Collector-Emitter Voltage Fig.7 Relative Current Transfer Ratio vs. Ambient Temperature Collector Current IC (ma) 6 5 4 3 2 1 I F =ma 1 5mA 1mA.5mA 2 3 4 5 6 7 Ta=25 C.1mA 8 9 Relative Current Transfer Ratio ( % ) 15 5-55 I F = 1 m A V CE=5V 25 5 75 115 Collector-Emitter Voltage V CE (V) Ambient Temperature Ta ( ) Fig.8 Collector-Emitter Saturation Voltage vs. Ambient Temperature Fig.9 Collector-Emitter Saturation Voltage vs. Forward Current Collector-Emitter Saturation Voltage VCE ( V ).3.27.24.21.18.15.12.9-55 25 5 75 I F =ma Ic=2m A 115 Collector-Emitter Saturation Voltage VCE ( V ) 7 6 5 4 3 2 1 Ta=25 C Ic=.5mA Ic=1mA Ic=3mA Ic=5mA Ic=7mA 2 4 6 8 Ambient Temperature Ta ( ) Fig. Response Time (Rise) vs. Load Resistance Forward Current I F (ma) Fig.11 Response Time (Fall) vs. Load Resistance Response Rise Time ( us ) 5 2 5 2 1.5.2.1 Vce=5V Ic=2m A Ta=25 C.1 1 tr Response Fall Time ( us ) 5 2 5 2 1.5.2.1 Vce=5V Ic=2m A Ta=25 C.1 1 tf Load Resistance R L (KΩ) Load Resistance R L (KΩ) Document No. 69P52.4-5 -
VccRLIFIFVce412Vce39%%trtfcosmo Test Circuit for Response Time Document No. 69P52.4-6 -
Recommended Soldering Conditions (a) Infrared reflow soldering: Peak reflow soldering: 26 or below (package surface temperature) Time of peak reflow temperature: sec Time of temperature higher than 23 : 3-6 sec Time to preheat temperature from 18~19 : 6-12 sec Time(s) of reflow: Two Flux: Rosin flux containing small amount of chlorine (The flux with a maximum chlorine content of.2 Wt% is recommended.) Recommended Temperature Profile of Infrared Reflow 26 sec Max. temperature 23 19 3-6 sec 18 6-12 sec t (s) (b) Wave soldering: Temperature: Time: Preheating conditions: Time(s) of reflow: Flux: 26 or below (molten solder temperature) seconds or less 12 or below (package surface temperature) One Rosin flux containing small amount of chlorine (The flux with a maximum chlorine content of.2 Wt% is recommended.) (c) Cautions: Fluxes: Avoid removing the residual flux with freon-based and chlorine-based cleaning solvent. Avoid shorting between portion of frame and leads. Document No. 69P52.4-7 -
Numbering System KPS28T Y (Z) Notes: KPS28T = Part No. Y = CTR rank option (A ~ E) Z = Tape and reel option (TLD TRU) Option Description Packing quantity TLD TLD tape & reel option 3 units per reel TRU TRU tape & reel option 3 units per reel Recommended Pad Layout for Surface Mount Lead Form Unit :mm Document No. 69P52.4-8 -
4-pin SSOP Carrier Tape & Reel TOLERANCE:±.2mm Document No. 69P52.4-9 -
Application Notice The content of datasheet is the guidance for product use only. cosmo takes no responsibility to the accuracy of the information provided here. For continuously improving all of products, including quality, reliability, function...etc., cosmo reserves the right to change the specification, characteristics, data, materials, and structure of products without notice. Please contact with cosmo to obtain the latest specification. It would be required to comply with the absolute maximum ratings listed in the specification. cosmo has no liability and responsibility to the damage caused by improper use of the products. cosmo products are intended to be designed for use in general electronics application list below: a. Personal computer b. OA machine c. Audio / Video d. Instrumentation e. Electrical application f. Measurement equipment g. Consumer electronics h. Telecommunication cosmo devices shall not be used or related with equipment requiring higher level of quality / reliability, or malfunction, or failure which may cause loss of human life, bodily injury, includes, without limitation: a. Medical and other life supporting equipments b. Space application c. Telecommunication equipment (trunk lines) d. Nuclear power control e. Equipment used for automotive vehicles, trains, ships...etc. This publication is the property of cosmo. No part of this publication may be reproduced or copied in any form or any means electronically or mechanically for any purpose, in whole or in part without any written permission expressed from cosmo. Document No. 69P52.4 - -